The new threat to the Winter Olympics less than three weeks away now look at this video they came out overnight these. Are purportedly the young man who carried -- a recent terror attack. Not far from Sochi where the games will be played -- can see them preparing a bomb that also issuing. A fresh threats so let's go straight to the newest member of ABC's foreign reporting team. Hey -- MacDonald -- in our London bureau came as good morning. They're good morning T -- the group this represented in those videos calls herself on cells so not. It's one of the insurgent groups involved in Doug -- done based in -- -- -- which is in the Caucasus region the very same region that Sochi is located in. -- the two guys aegis over there in the video. They were involved in the vote boulder grad attack which happened at the end of last year targeted public transport they killed the number of people. The video also shows them preparing that bomb making materials. Ominously however. They say that there will be further attacks injuring the Olympic -- there is a specific threat made to people planning to visit. They say there will be a surprise package for tourists visiting -- -- during the Winter Olympics. Now at the same time the Russian security forces have released another video. Which they say demonstrates -- security operation that took place on Saturday in the Caucasus region. Attacking militants that we can't independently verify the location -- the timing all of this video. But dissect it happened on Saturday and that it killed a number all of the insurgents. It's -- -- that few weeks out from these Olympic Games down that the focus is almost entirely on security reports out today. Suggests that the security operation -- she will dwarf that. That was here in London you remember during the gangs there what huge numbers of troops police on the streets patrolling to make -- the gangs went safely. Now we hearing today. That double the number. Will be present -- -- over the next month we'll sit down and there have been estimates of potentially 70000 security officials some people worry could spoil the spirit of the games all that security. Harris thank you and once again welcome to ABC news.

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